Sending a Letter - TypeError: 'float' object has no attribute '__getitem__'


#1



Hi there, I got stuck at 'Sending a Letter' and don't know how to fix it. :frowning: Please help.


I got error message after I submit the code, am I missing anything?

Traceback (most recent call last):
File "python", line 46, in
File "python", line 29, in get_average
TypeError: 'float' object has no attribute 'getitem'


lloyd = {
    "name": "Lloyd",
    "homework": [90.0, 97.0, 75.0, 92.0],
    "quizzes": [88.0, 40.0, 94.0],
    "tests": [75.0, 90.0]
}
alice = {
    "name": "Alice",
    "homework": [100.0, 92.0, 98.0, 100.0],
    "quizzes": [82.0, 83.0, 91.0],
    "tests": [89.0, 97.0]
}
tyler = {
    "name": "Tyler",
    "homework": [0.0, 87.0, 75.0, 22.0],
    "quizzes": [0.0, 75.0, 78.0],
    "tests": [100.0, 100.0]
}

students = [lloyd, alice, tyler]

# Add your function below!
def average(numbers):
    total = sum(numbers)
    total = float(total)/len(numbers)
    return total

def get_average(student):
    homework = average(student["homework"])
    quizzes = average(student["quizzes"])
    tests = average(student["tests"])
    return (0.1 * homework) + (0.3 * quizzes) + (0.6 * tests)

def get_letter_grade(score):
    if score >= 90:
        return "A"
    elif score >= 80:
        return "B"
    elif score >= 70:
        return "C"
    elif score >= 60:
        return "D"
    else:
        return "F"

print get_average(get_average(lloyd))


#2

print get_average(get_average(lloyd))

why are you calling get_average twice?


#3

Oh you are right!!!! I've correct it and the result comes out. Thanks a lot!!! :slight_smile:


#4